Research on the analytical method of contact vibration performance of reed relay

Inherent frequency and vibration limited acceleration are the two major parameters that determine the performance of reed relay contacts under a mechanical environment. Based on the theory of materials mechanics and vibration mechanics, a mathematical model of the reed´s vibration mode is presented in this paper. By using a classical analytic approach and finite element method, the failure criterion of a reed relay in vibration is given; the vibration mode of the reed system is analyzed and the transient process of the displacement of the reed contact is simulated. The vibration performance of a reed contact under the conditions of sinusoidal actuating vibration with high frequency is provided and analyzed. A discussion of the effect of reed contact dimensional parameters on inherent frequency and vibration performance is emphasized.